Get the current best available prices for immediate execution decisions. Use this tool when you need to: - Make quick trading decisions without full orderbook depth - Calculate current spread costs before placing orders - Monitor real-time price changes efficiently - Get a snapshot of current mar...
AI agents call paradex_bbo to retrieve information from Paradex MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
market_id | string | — | Market symbol to get BBO for. |
Parameters from the server's own tool schema.
The paradex_bbo tool is a market data query function that returns best-bid-offer (BBO) information for informed decision-making. It retrieves and displays real-time pricing data but does not execute trades, modify positions, delete data, or move funds. While it informs trading decisions on a financial platform, the tool itself is purely informational (Read category).
From the tool's definition Tool retrieves 'current best available prices' and provides 'a snapshot of current market conditions' with 'minimal data'.
Documented attack patterns abuse exactly the kind of access paradex_bbo gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Paradex MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for paradex_bbo:
{
"version": "1",
"default": "deny",
"tools": {
"paradex_bbo": {}
}
}paradex_bbo is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get the current best available prices for immediate execution decisions. Use this tool when you need to: - Make quick trading decisions without full orderbook depth - Calculate current spread costs before placing orders - Monitor real-time price changes efficiently - Get a snapshot of current market conditions - Determine fair mid-price for calculations The BBO provides the most essential price information with minimal data, perfect for quick decisions or when full orderbook depth isn't needed. Example use cases: - Calculating current trading spreads before placing orders - Monitoring real-time price movements efficiently - Determining execution prices for immediate market orders - Calculating mid-price for order placement strategies - Setting appropriate limit order prices to improve fill chances. It is categorised as a Read tool in the Paradex MCP Server MCP Server, which means it retrieves data without modifying state.
paradex_bbo accepts 1 parameter: market_id. The full parameter table on this page comes from the server's own tool schema.
Register the Paradex MCP Server MCP server in PolicyLayer and add a rule for paradex_bbo: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Paradex MCP Server. Nothing to install.
paradex_bbo is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the paradex_bbo rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for paradex_bbo. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
paradex_bbo is provided by the Paradex MCP Server MCP server (tradeparadex/mcp-paradex-py). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Paradex MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
16 Paradex MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.